Optical beam profile tranforming element

Details Optical beam profile tranforming element Optical beam profile tranforming element

1991-04-02

1992-12-29

Lee, John D.

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385124, G02B 618

Patent

active

051757885

ABSTRACT:
An optical beam profile transforming element which is a monolith solid element with a low loss is provided by placing at least two parallel plastic wave guide layers in contact with each other, each of the at least two parallel plastic wave guide layers having a refractive index gradually varying in the direction of light propagation so that the at least two parallel plastic wave guide layers as a whole transform a profile of an optical beam in the direction vertical to the layers. The variation of the refractive index can be obtained by varying a concentration of a dopant in a matrix, and the variation of the concentration of a dopant in a matrix can be obtained by varying an irradiation amount of a combination of a matrix and a dopant monomer with an ultra-violet ray.

REFERENCES:
patent: 4339174 (1982-07-01), Levin
patent: 4856859 (1989-08-01), Imoto
patent: 4871221 (1989-10-01), Imoto

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